I have finally assembled this rack today.   It's a fairly easy assembly, though very awkward until you get three shelves going (provided stability), and since I did not use all of my shelves, they were spaced farther apart, giving the support I needed to get the higher up shelves on.  The "leveling" feet are a good idea, but the plastic covers (cosmetic use only) are a bit flimsy and a couple were bent on the edge.  The rack sits on carpet, so it's not noticeable.  Overall, it is sturdy.  I have no children or pets to worry about tipping it over, and I loaded it with books on the bottom shelf to keep the center of gravity low so I wouldn't have to put holes in my sheetrock for fastening the included safety straps.